DBH15-M-50/6 - TAIXUANTECH

DBH15-M-50/6 Single-Phase Two-Winding Oil-Immersed Off-Circuit Tap-Changer Distribution Transformer

6kV Oil-Immersed Amorphous Alloy Distribution Transformer Series

DBH15-M-50/6 Single-Phase Two-Winding Oil-Immersed Off-Circuit Tap-Changer Distribution Transformer

The DBH15-M-50/6 is a single-phase, two-winding oil-immersed distribution transformer with an amorphous alloy core and an off-circuit tap changer, rated at 50kVA and 6kV on the high-voltage side. The amorphous alloy core significantly reduces no-load loss compared with conventional silicon steel transformers, delivering substantial energy savings over the transformer’s service life. The transformer features a fully sealed corrugated tank structure that isolates the transformer oil from air, slowing down insulation aging and enabling maintenance-free operation. The core is made of high-quality ultra-thin amorphous alloy strips with a wound core structure. Windings use oxygen-free copper conductors, ensuring low partial discharge, low temperature rise, and strong short-circuit withstand capability. Typical applications include rural electrification, residential areas, small commercial buildings, and agricultural irrigation, where reliable single-phase power supply and low no-load loss are essential.

Industrial & Commercial Utility & Grid

Rated Capacity: 50 kVA
Rated Voltage Ratio: 6/0.22-0.24 kV
Connection Group: Ii0 (Ii6 available upon request)
Cooling Method: ONAN
Energy Efficiency Class: N/A
Standard：IEC 60076, GB/T 25446-2010

Product Details

Learn more about our products

Product Model DBH15-M-50/6

No-Load Loss ≤0.04 kW

Rated Capacity 50 kVA

No-Load Current ≤1.0%

Phase single-phase

Load Loss (120°C) ≤0.855 kW

Rated Voltage Ratio 6/0.22-0.24 kV

Short-Circuit Impedance 3.5%

HV Tapping Range ±5%

Temperature Rise Limit Top oil ≤55K, Winding ≤65K

Rated Frequency 50 Hz

Noise (Sound Pressure Level) ≤48 dB(A)

Connection Group Ii0 (Ii6 available upon request)

Protection Degree IP65

Cooling Method ONAN

Standard IEC 60076, GB/T 25446-2010

Insulation Class A, LI60 AC25 / AC5

Energy Efficiency Class N/A

01.

Core advantages

Ultra-Low No-Load Loss

The amorphous alloy core reduces no-load loss by approximately 70–80% compared with conventional silicon steel transformers. This advantage is most pronounced in rural electrification and residential distribution, where the transformer operates at low load for extended periods. Actual measured losses are typically lower than reference values, and detailed test data can be provided upon request.

Fully Sealed Structure

The transformer features a fully sealed corrugated tank structure that isolates the transformer oil from air, slowing down insulation aging and preventing moisture ingress. The transformer is maintenance-free and suitable for outdoor installation, including pole-mounted and ground-mounted applications.

Low Noise & Strong Short-Circuit Withstand

Optimized core and winding design delivers low noise operation, suitable for residential areas and noise-sensitive locations. The transformer maintains stable operation under continuous load with strong short-circuit withstand capability and a long service life.

02.

Application scenarios

No data was found

01.

Authoritative Certification

Our transformers are CE certified, ensuring full compliance with EU safety, health, and environmental standards.

Our transformers are UL certified, confirming they meet rigorous ANSI/IEEE safety standards for North American market entry.

ASTA

Our transformers have obtained ASTA type-test certification, verifying IEC 60076 compliance.

EAC

Our transformers are EAC certified, ensuring compliance with safety and EMC regulations for the Eurasian market.

SASO

We provide SASO-compliant transformers and assist clients in obtaining the Batch Certificate of Conformity (CoC) through the SABER platform.

02.

Quality Assurance

Partner Factory Audit

Regular on-site audits of partner factories to verify ISO, CE, and UL certifications.

Full-Process Quality Control

From raw material inspection to pre-shipment final inspection, every unit is checked against specifications.

Comprehensive Test Reports

Each transformer includes a detailed factory test report. 100% full inspection before dispatch.

Third-Party Inspection Support

SGS, BV, or other accredited third-party inspection available upon customer request.

01.

Technical Documents

No data was found

02.

Certification Materials

No data was found

6kV Oil-Immersed Amorphous Alloy Distribution Transformer Series – Full Specifications

6kV, single-phase, 2-winding, oil-immersed, amorphous alloy core, off-circuit tap-changer, distribution transformer, 5-160kVA
Model	Rated Capacity (kVA)	HV (kV)	HV Tapping Range	LV (kV)	Vector Group	No-Load Loss (kW)	Load Loss (kW)	Impedance Voltage (%)
DBH15-M-5/6	5	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.015	0.130	3.5
DBH23-M-5/6	5	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.014	0.117	3.5
DBH15-M-10/6	10	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.018	0.235	3.5
DBH23-M-10/6	10	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.016	0.212	3.5
DBH15-M-16/6	16	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.022	0.330	3.5
DBH23-M-16/6	16	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.020	0.297	3.5
DBH15-M-20/6	20	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.025	0.385	3.5
DBH23-M-20/6	20	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.023	0.347	3.5
DBH15-M-30/6	30	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.030	0.560	3.5
DBH23-M-30/6	30	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.027	0.504	3.5
DBH15-M-40/6	40	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.035	0.700	3.5
DBH23-M-40/6	40	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.032	0.630	3.5
DBH15-M-50/6	50	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.040	0.855	3.5
DBH23-M-50/6	50	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.036	0.770	3.5
DBH15-M-63/6	63	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.050	1.020	3.5
DBH23-M-63/6	63	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.045	0.918	3.5
DBH15-M-80/6	80	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.060	1.260	3.5
DBH23-M-80/6	80	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.054	1.134	3.5
DBH15-M-100/6	100	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.070	1.485	3.5
DBH23-M-100/6	100	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.063	1.337	3.5
DBH15-M-125/6	125	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.085	1.755	3.5
DBH23-M-125/6	125	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.077	1.580	3.5
DBH15-M-160/6	160	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.100	2.130	3.5
DBH23-M-160/6	160	6，6.3	±5%	2×（0.22~0.24）or 0.22~0.24	Ii0	0.090	1.917	3.5
Note： 1.Tapping range options: ±5% or ±2×2.5%. ±5% is shown as default in this table. Other tapping ranges are available upon request. 2.Other high and low voltages are available upon request. 3.For IEC, ANSI, or other standards, or special frequency requirements, please contact us for a customized datasheet.

* For specific product requests, please Contact Us for customized solutions to your needs.

Contact information

Leave your contact information to download documents

DBH15-M-50/6 Single-Phase Two-Winding Oil-Immersed Off-Circuit Tap-Changer Distribution Transformer

6kV Oil-Immersed Amorphous Alloy Distribution Transformer Series

DBH15-M-50/6 Single-Phase Two-Winding Oil-Immersed Off-Circuit Tap-Changer Distribution Transformer